Oil-purifying apparatus.



3,1. BAUM. OIL PURIFY ING APPARATUS. APPLIGATIOH FILEDNOV. 13, 1913.,

Patented Sept. 1, 1914.

Witnesses v (maven Co! Edwuz P. Baum,

UL m.

(1 H'onwad En STATES PATENT OFFICE.

EDWIN P. BAUM, or knokuiglowa. I

OIL-PURIFYING Armna'rns.

To all whom it may concern Be it. known that I, EDWIN BaUM, a citizen ofthe United States, residing at Keo 'kuk, the county of Lee and State ofIowa,

have invented certain new and useful Improvements in. Oil-PurifyingApparatus, of

' which the following is a specification.

My invention relates to improvements in,

apparatus for purifying oil by removing the water contained therein.

An important object of my invention is to provide apparatus of the abovementioned character, which is simple in construction, inexpensive tomanufacture, and willoperate expeditiously and continuously.

Other objects and advantages of this invention will be apparent duringthe course of the following description.

In the accompanying drawings forming a part of thisspecification, thefigure is a central longitu' inal section through the entire apparatus.

In the drawings, wherein is illustrated apreferred embodiment of myinvention, the

numeral 1 designates a preferably cylindri- -cal vertical main shell orcasing, having its lower end permanently closed and its upper endnormally closed by a removable lid or cover 2, equipped with handles 3.The lid or cover 2 is provided centrally thereof with an opening 4,through which passes a vertical feed pipe 5, the lower end of whichpasses through a. double walled conical heatin chamber shell 6, and isrigidly detachably connected therewith by means of rings 7 and 8disposed above and below the same. Attention is called to the fact thatthe feed a pipe 5 discharges into the upper end of the ing an upwardlyextending annular flange 12, forming an annular catchment receptacle ortrough 13. The double walled heating chamber or shell 6 is supported bya suitable number of tubular legs 14, apertured near their lower ends,as shown at 15. The

lower ends of these legs engage the bottom of the main shell or casing 1while the upper walled conical shell 6, with their upper ends' endsthereof pass through apertures 16 formed through the walls of the doubleSpecification of Letters Pat ent-L I Paten ed Sept. 1, 1914 Applicationfiled November 13, 1913. serial n6.=soo,so5.

in free communication with the annular ing rings17 arecarried by thesetubular legs and engage the lower wall of the shell '6, whereby the legsare rigidly connected therewith. The tubular legs l4'have nocommunlcation with the dead air space 10 of the double walled shell (3,such shell being hermetically sealed.

- The numeral 18 designates a conical steam heating coil, whichincreases in diameter downwar ly, and is arranged within the conicalheating chamber 9, in spaced relation to the lower wall of the shell 6,as shown. Steam is suppliedinto the lower end of the coil 18 through apipe 19 and passes out of the same through a pipe 20. The opening of theupper-most turn of the coil 18 is arranged below, spaced from, and inalinem'ent with the discharge end of the feed pip'e'o, whereby oilpassing from this pipe will circulate inwardly of, through, and

about the heating coil 18,'in direct contact therewith upon firstentering the heating chamber.

The minimal-21 designates a supply receptacle or hopper, having itsupper end nor mally closed by'aremovable lid or cover 22, equippedwit-hhandles 23. This lid or cover is provided with a feed opening 24. Thesupply receptacle*or hopper 21 has its bottom 25 formed conical;decreasing'in diameter downw'ardlyand provided at its reduced end with atip or pipe section 26, extending into the upper end of the feed pipe 5,and preferablyhaving screw-threaded engagexnent therewith, as shown at27. Arranged within thesuppl-y receptacle or hopper21 is a conicalstrainer 28, increasing in diameter downwardly, and having its ,enlargedend or base arranged upon the bottomf25'of the receptacle or hopper 21,as shown.

The numeral 29 "designates an oil outlet pipe, connected with the mainshell or casingl, near and spacedfrom the upper end .thereof, asshownJ'This oil outletpipe communicates witli'ianiinterior oil outleth'oppcr 30, haymgfits'upper enlarged end31 formed entirely open, asshown. Arranged preferably diametrically opposite the oil outlet pipe 29is a wateroutlet pipe-32, the inner end of which is in-=communicationwith a closed casing or box 33, arranged nearthe lid or cover 2, asshown. Extending into this casing or box 33 is a vertical' water outletpipe 34, held in place by brackets 35. The lower end of the pipe 3 1 isprovided with a flaring in-take mouth 36, disposed near and spaced fromthe bottom of the main shell or casing 1, as shown.

The numeral 37 designates a vertical tube gage, connected with the mainshell or casing 1, in the usual manner, to indicate the level of theliquid therein. The main shell or casing 1 is provided adjacent itsbottom with a drain pipe 38, which is equipped with a suitable cut-offvalve (not shown}.

The operation of the apparatus 1s as follows: The oil having the watermixed therewith is fed into the receptacle or hopper 21, and passesthrough the [conical strainer 28, whereby any soiled material ofconsiderable s1ze is prevented from passing into the main shell orcasing 1. This oil now passes into the feed pipe 5, and gravitatesthrough the same to be discharged from the lower end thereof, into theheating chamber 9. In this heating chamber the oil containing the waterpasses through, about,'and in direct contact with the heating coil 18,whereby the oil is heated to a temperature at which it will separatefrom the water. The water condenses and moves to the bottom of the mainshell or casing 1, while the oil circulates around the free edges of thedouble walled shell 6 and passes into the upper portion of the mainshell or casing. The heated oil in the upper portion of the main shellor casing tends to circulate therein, passing upwardly adjacent theshell 1 and downwardly adjacent the double walled shell 6, as indicatedby the arrows, while the entire body of the purified oil is rising. Thefunction of providing the double walled heating chamber or shell 6 withthe dead air space is to provide means for retaining the heat, as far aspossible, within the heating chamher 9, wherein it is desired to heatthe oil while the same is in the lower portion of the main shell orcasing, to separate the same from the water. However, it has been foundthat all of the water may not be separated from the oil'while in theheating chamber 9,

the remainder of the Water being separated from the heated oil afterthesame passes into the upper portion of the main shell or casing 1,adjacent the double walled shell 6,

. asabove explained. hen the oil separates from the water, above andadjacent the double walled shell 6, such water is collected in thecatchment receptacle or trough 13,

, and passes downwardly through the tubular legs 14:, to be dischargedthrough apertures 15 onto the bottom of the main shell or casing 1. Whenthe level of the oil and water in the main shell or casing 1 reaches acertain height the oil passes into the hopper 30 and is dischargedthrough the pipe 29, while the water passes from the bottom of the mainshell or casing 1, through pipe 34, closed boxes or casing 33, andthrough pipe 32. Any sediment collecting in the bottom of the main shellor casing may be removed through the opening 38.

A particular advantage gained in my construction is the ease with whichthe several parts of the apparatus may be separated and assembled, forthe purpose of cleaning or repair. It 1s obvious that the supplyreceptacle or ho per 21 may be readily disconnected from t e feed pipe5, whereby the lid or cover 2 may be removed, and the double walledshell 6 and associated elements taken out of the main shell or casing 1.

It is to, be understood that the form of my invention herewith shown anddescribed is to be taken as a preferred example of the same, and thatvarious changes in the shape, size and arrangement of parts may beresorted to without departing from the spirit of the invention or thescope of the subjoined claims.

Having described my invention, I claim 1. In apparatus of the characterdescribed, the combination with a .main casing, of a shell arrangedtherein for forming a heating chamber therebelow and provided with anupstanding flangeforming a catchment receptacle for the water separatedfrom the oil, depending tubes connected with the shell and havingcommunication with the catch ment receptacle, a heating coil arrangedwithin the heating chamber, and a feed pipe discharging into the heatingchamber.

2. In apparatus of the character described, the combination with a maincasing, of a conical double walled shell arranged therein and inc'reasinin diameter downwardly for providing a eating chamber open at its lowerend, a continuous flange formed upon the upper side of the conical shellfor providing a catchment receptacle, tubular legs connected with thedouble walled shell, engaging the bottom of he main casing, andaperture'd near their ower ends, a feed pipe leading into the heatingchamber, and a heating coil arranged within the heating chamber.

In testimony whereof I aifix my signature in presence of two witnesses.

EDWIN P. BAUM.

